If your LLC has more than one member or employs anyone -- even if not full time -- you must request a federal tax ID from the Internal Revenue Service. Certain taxation decisions may also require you to obtain a tax ID. The number is also called an employer identification number and is the way the IRS identifies businesses on their tax filings. In this way, it is similar to your personal Social Security number. If your LLC is located in the United States, you may request an EIN online at the IRS website.
Access the IRS's EIN Assistant to begin the online application (see Resources).
Click the "Begin Application" button.
Check the box next to the "Limited Liability Company (LLC)" selection. Click "Continue."
Read the description of a limited liability company to ensure that your entity complies with the IRS definition. Click "Continue."
Enter the number of members in your LLC and the state in which your LLC is principally located. A member is someone who has an ownership interest in your LLC. Remember to include yourself in this number. Click "Continue."
Supply the reason you are requesting an EIN by checking the appropriate box. Your selection will determine which questions come next in the form. Click "Continue."
Answer any subsequent questions, which will ask about the identity of the person filling out the form -- to ensure that you have legal authority -- and the address of your LLC.